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- A new security vulnerability has been discovered in Apple’s M-Series chipset (M1, M2, M3) used in Mac and MacBook computers.
- The vulnerability is unpatchable and allows hackers to extract secret encryption keys via “GoFetch,” a side-channel attack.
- The attack exploits prefetchers, which predictively retrieve data and can be manipulated to reveal sensitive information.
- The vulnerability is due to the microarchitectural design of the chip, making it unfixable with a software update.
- Apple was informed of the issue on Dec 5, 2023, but has not yet addressed it.
- The vulnerability affects all new Apple computers released from late 2020 to the present.
